Search a number
-
+
213411949 is a prime number
BaseRepresentation
bin11001011100001…
…10100001101101
3112212120110011021
430232012201231
5414113140244
633102054141
75200654162
oct1456064155
9485513137
10213411949
11aa513613
125b57a351
13352a1b7a
14204b4069
1513b08284
hexcb8686d

213411949 has 2 divisors, whose sum is σ = 213411950. Its totient is φ = 213411948.

The previous prime is 213411937. The next prime is 213411959. The reversal of 213411949 is 949114312.

213411949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149891049 + 63520900 = 12243^2 + 7970^2 .

It is a cyclic number.

It is not a de Polignac number, because 213411949 - 215 = 213379181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213411959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106705974 + 106705975.

It is an arithmetic number, because the mean of its divisors is an integer number (106705975).

Almost surely, 2213411949 is an apocalyptic number.

It is an amenable number.

213411949 is a deficient number, since it is larger than the sum of its proper divisors (1).

213411949 is an equidigital number, since it uses as much as digits as its factorization.

213411949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 213411949 is about 14608.6258422892. The cubic root of 213411949 is about 597.5940214897.

The spelling of 213411949 in words is "two hundred thirteen million, four hundred eleven thousand, nine hundred forty-nine".